Rectangle Shape
This effect replaces the circular cross-section with an axis-aligned rectangle. Four independent corner radii let you round only the corners you want—from sharp right angles to a nearly pill-like outline. It defines the actual path geometry (not vertex displacement), does not support Growth Curve, and scales with your profile like other cross-section shapes.
Preview
Effect Controls
Interactive preview is available in the interactive reader.
Parameters
Width (mm)- Rectangle extent on one axis (1–500 mm).
Length (mm)- Rectangle extent on the other axis (1–500 mm).
Radius TR / TL / BR / BL- Per-corner fillet radius in millimeters (0–200 each, step 0.1); 0 is a sharp corner.
Spiral (°)- Rotation of the rectangle that increases with height (−1800° to 1800°).
Phase- Angular offset of the rectangle around the layer (0–6.28 rad).
How It Works
The cross-section is a rounded rectangle where each corner can have its own arc radius. Internally the outline is a closed loop with line segments and circular arcs meeting tangentially (within valid radius limits for the box size). Your profile scales the whole footprint with height; Spiral adds height-varying rotation and Phase a constant twist.
Unlike bump or synth modulators, this effect does not deform an underlying cylinder—it is the boundary of the slice. Growth Curve does not apply to this module type.